WhyCan Forum(哇酷开发者社区)

zhuacai

会员

注册时间： 2017-12-16

已发帖子： 234

积分： 233.5

各位大哥,V3s的ALSA录音录不到音,帮我看看是不是没设置好?

V3s的ALSA录音录不到音,录的都是燥音,是不是没设置好
# ./amixer contents
numid=13,iface=MIXER,name='Headphone Source Playback Route'
  ; type=ENUMERATED,access=rw------,values=2,items=2
  ; Item #0 'DAC'
  ; Item #1 'Mixer'
  : values=0,0
numid=3,iface=MIXER,name='Headphone Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=2,iface=MIXER,name='Headphone Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=63,step=0
  : values=63
  | dBscale-min=-63.00dB,step=1.00dB,mute=1
numid=5,iface=MIXER,name='Mic1 Boost Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=7,step=0
  : values=4
  | dBrange-
    rangemin=0,,rangemax=0
      | dBscale-min=0.00dB,step=0.00dB,mute=0
    rangemin=1,,rangemax=7
      | dBscale-min=24.00dB,step=3.00dB,mute=0

numid=12,iface=MIXER,name='Mic1 Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=9,iface=MIXER,name='Mic1 Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=4,iface=MIXER,name='Mic1 Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=7,step=0
  : values=3
  | dBscale-min=-4.50dB,step=1.50dB,mute=0
numid=6,iface=MIXER,name='ADC Gain Capture Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=7,step=0
  : values=3
  | dBscale-min=-4.50dB,step=1.50dB,mute=0
numid=7,iface=MIXER,name='DAC Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=1,iface=MIXER,name='DAC Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=0,max=63,step=0
  : values=63
  | dBscale-min=-73.08dB,step=1.16dB,mute=0
numid=8,iface=MIXER,name='DAC Reversed Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=10,iface=MIXER,name='Mixer Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=11,iface=MIXER,name='Mixer Reversed Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
# ./amixer -c 0 cset numid=12 2
numid=12,iface=MIXER,name='Mic1 Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on

# ./amixer -c 0 sset 'Headphone',0 100% unmute
Simple mixer control 'Headphone',0
  Capabilities: pvolume pvolume-joined pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 63
  Mono:
  Front Left: Playback 63 [100%] [0.00dB] [on]
  Front Right: Playback 63 [100%] [0.00dB] [on]

# ./arecord -D hw:0,0 -d 3 -f S16_LE -r 16000 ttmp.wav
Recording WAVE 'ttmp.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono

# ./amixer -c 0 sset 'Headphone',0 100% unmute
Simple mixer control 'Headphone',0
  Capabilities: pvolume pvolume-joined pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 63
  Mono:
  Front Left: Playback 63 [100%] [0.00dB] [on]
  Front Right: Playback 63 [100%] [0.00dB] [on]

# ./aplay ttmp.wav
Playing WAVE 'ttmp.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
#

泽畔

会员

注册时间： 2018-02-13

已发帖子： 11

积分： 30.5

Re: 各位大哥,V3s的ALSA录音录不到音,帮我看看是不是没设置好?

板载mic的设计问题，需要移去板载mic，就可以使用耳机来录音。或者更换上自己的mic。